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JPS5363083A - Detecting circuit for minute changing quantity - Google Patents

Detecting circuit for minute changing quantity

Info

Publication number
JPS5363083A
JPS5363083A JP13774776A JP13774776A JPS5363083A JP S5363083 A JPS5363083 A JP S5363083A JP 13774776 A JP13774776 A JP 13774776A JP 13774776 A JP13774776 A JP 13774776A JP S5363083 A JPS5363083 A JP S5363083A
Authority
JP
Japan
Prior art keywords
detecting circuit
changing quantity
minute changing
minute
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13774776A
Other languages
Japanese (ja)
Inventor
Tadamitsu Ryu
Masaru Miyazaki
Shigeki Sano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13774776A priority Critical patent/JPS5363083A/en
Publication of JPS5363083A publication Critical patent/JPS5363083A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To obtain high detecting accuracy by the addition of simple circuit element, by piling up slow frequency signal on the standard value for detection and removing the above signal from the signal showing apparent minute changing quantity.
JP13774776A 1976-11-18 1976-11-18 Detecting circuit for minute changing quantity Pending JPS5363083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13774776A JPS5363083A (en) 1976-11-18 1976-11-18 Detecting circuit for minute changing quantity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13774776A JPS5363083A (en) 1976-11-18 1976-11-18 Detecting circuit for minute changing quantity

Publications (1)

Publication Number Publication Date
JPS5363083A true JPS5363083A (en) 1978-06-06

Family

ID=15205874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13774776A Pending JPS5363083A (en) 1976-11-18 1976-11-18 Detecting circuit for minute changing quantity

Country Status (1)

Country Link
JP (1) JPS5363083A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226877A (en) * 1983-06-07 1984-12-20 Yokogawa Hokushin Electric Corp Measuring circuit of minute voltage variation portion
JPS63273021A (en) * 1987-04-30 1988-11-10 Matsushita Electric Ind Co Ltd Ac light component amplifier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226877A (en) * 1983-06-07 1984-12-20 Yokogawa Hokushin Electric Corp Measuring circuit of minute voltage variation portion
JPS63273021A (en) * 1987-04-30 1988-11-10 Matsushita Electric Ind Co Ltd Ac light component amplifier
JP2558691B2 (en) * 1987-04-30 1996-11-27 松下電器産業株式会社 AC light component amplifier

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